Informational: Handle Incorrect Phishing Warning

We were reported a strange request today where some of user opening a valid legitimate web page were shown Phishing Warning message; though issue was not reproducible are our end. We checked across Chrome, FF, IE browsers and it seems working fine.

On the other side, in order to provide a valid reasoning to the user facing such issues, we tried to find any recognized tool or service to validate the same. Fortunately, we come across two Google services: